Pressure in Coordination Chemistry II
Alternative Title
Antiferromagnetic complexes of copper(II)
Abstract
The effect of high pressure (1-3000 atm) on the magnetic properties of binuclear carboxylate complexes of copper(II), all of which exhibit pairwise antiferromagnetic interactions, is found to be surprisingly small, when the measurements are made on solutions in aprotic solvents or on the solids mulled in inert media. This indicates that there is little reduction in volume in going from the “triplet state” dimer (with one unpaired electron per copper) to the “singlet state” dimer (diamagnetic). The polymeric copper(II) oxalate behaves similarly. This result is best explained in terms of a weak copper-copper interaction, in the form of a δ bond or a superexchange mechanism. In solutions containing “structure-breaking” solvents, such as ethanol or pyridine, there is an increase in magnetic susceptibility with increasing pressure, which is attributed to the dissociation of the bimolecular complexes.
Recommended Citation
A. H. Ewald and E. Sinn, "Pressure in Coordination Chemistry II," Inorganic Chemistry, American Chemical Society (ACS), Jan 1969.
The definitive version is available at https://doi.org/10.1021/ic50073a024
Department(s)
Chemistry
International Standard Serial Number (ISSN)
0020-1669
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 1969 American Chemical Society (ACS), All rights reserved.
Publication Date
01 Jan 1969
